• $PT$-symmetric nonlinear systems and their implication in optics

• # Fulltext

https://www.ias.ac.in/article/fulltext/conf/002/0011

• # Keywords

$PT$-symmetry; spontaneous symmetry breaking; non-reciprocity

• # Abstract

In this paper, we briefly review a few interesting dynamical aspects and applications of nonlinear $PT$-symmetric systems. Being at the boundary between dissipative and conservative systems, these $PT$-symmetric systems show many interesting characteristics and applications that cannot be seen in the usual dissipative and conservative ones. Among the variety of applications, we here focus on the applicability of $PT$-symmetric systems in unidirectional light transport. This particular application clearly evidences the usefulness of the non-reciprocal nature and symmetry broken phase of a PT-symmetric system and importantly the role of nonlinearities in optics.

• # Author Affiliations

1. Centre for Nonlinear Dyself phasenamics, School of Physics, Bharathidasan University, Tiruchirappalli 620 024, India
2. Centre for Nonlinear Science & Engineering, School of Electrical & Electronics Engineering, SASTRA University, Thanjavur 613 401, India